御斎会
【ゴサイエ】
imperial event at which high monks recited the Golden Light Sutra to pray for national security and good harvests (held annually at the palace from the 8th to the 14th of the first lunar month, between the Nara and Muromachi periods)

Kun reading compounds

会う
【あう】
to meet, to encounter, to see, to have an accident, to have a bad experience

逢うは別れの始め
【あうはわかれのはじめ】
we meet only to part, meeting is the first step to parting

会わせる
【あわせる】
to make (someone) to meet, to let (someone) meet, to expose to, to subject to